ξυμβαίη (xymbaie)
ξυμβαίη is an Ancient Greek form of συμβαίνω, meaning “happen, come to pass; agree”. It is the 3rd person singular aorist active optative.
Found 27 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 2.34.7: ὧδε μὲν θάπτουσιν· καὶ διὰ παντὸς τοῦ πολέμου, ὁπότε ξυμβαίη αὐτοῖς, ἐχρῶντο τῷ νόμῳ.
All forms of συμβαίνω (conjugation table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.